Car-wheel



'(No Model.) u

, D. HAZARD.

GARWEBEL; N0, 508,824. Patent-9d NOV. llljfl'g.` Rw

mufwssleelllsmmnueff W'zesses.

UNITED STATES PATENT OEE-ICE.

DEXTER HAZARD, OF MARQUETTE, MICHIGA.'

CAR-WH EEL.

SPECIFICATION forming part of Letters Patent No. 508,824, datedV November 14, 1893. Application tiled July 10, 1893. Serial No. 480,097. (No model.)

To @ZZ whom it may concern:

Be it known that I, DEXTER HAZARD, of

Marquette, in the county of Marquette and State of Michigan, have invented a new andv make the power on such grades more effi-` cient; and my device is an improvement in the wheels of said locomotives and cars, and also in the rails on steam-railroads and streetcar lines on steep grades, thereby not only increasing the efficiency of the power propelling the cars on such grades, but also rendering travel safer upon such steep grades. f

My invention has for its object the production of a suitable mechanism for use in con nectionwith locomotives, railway cars and electric cars, as well as wheels upon all street cars, wherebythe following objects may be accomplished: irst, the prevention of car Wheels and locomotive'wheels from slipping upon steep grades, when the brakes are firmly set, and thus preventing the danger of cars sliding or skating onsteep grades when brakes are rmly set; second, to utilize more thor oughly` the motive power, either steam, electricity or otherwise, propelling cars or locomotives upon steep grades. I accomplish these objects by a combination of devices andappliances hereinafter described and claimed in the drawings and specification hereto attached.

Figure -l is a side and end view of my invention, combining the circular rim A, as shown in Figs.-5 'and 7, and as interlocked with casting B as lshown in Figs. 2 and 3, more particularly described below. Fig. 2 is an edge View of one pair of car wheels standing upon the rail, as meshed in said casting B, showing A and B in position when in use, as more particularly described below. Fig. 3 is a side view of one wheel in Fig. 2. Fig. 4 is the edge -View with parts broken away, to show how the circular rim A is held to the wheel with casting D,and more particularly described below. Fig. 5 is a side view of casting D, showing projecting lugs a a, as appear in Figs. 3 and 7. Fig. 6 is a view of the circular rim A, showing the open space which is filled and covered by casting D, shown in Fig. 5. Fig.7 isaside nary cog wheels.

view of letters A and D,. as appear in Fig. 4:, and as fastened to the wheel fully adjusted. Fig. 8 is a section of rim A provided with teeth, such as are used in ordi- Fig. 9 is a section of a side view of casting B. Fig. 10 is an end View of the rail showing the casting Bcastsolid to the rail.

My invention, as shown in the drawings, is aneffective device for preventing the 'slipping of car and locomotive wheels on, steep grades,and to utilize more thoroughly the motive power in use in climbing-such grades, than has been previously done. This device consists of a row of teeth-upon casting B, which casting B is formed so as to it in between the upper and lower flanges of a rail, and is bolted upon the outside 4of' the rail, or may be castwith and as apart of. the rail. Said teeth are so made as to mesh with open spaces in projecting circular rim A. Upon the plate D is a projecting `ange begin- On B are projecting teeth, which correspond with the open spaces in the projecting rim A. Rim A is the same diameter as the car wheel. The teeth on B stand above the rail and enter the open spaces in rim A, as the oar is in motion along the rail, meshing together so as to prevent the slipping of the car or locomotive wheels either ascending or descending the grade, and also so as to increase the efficiency of the power propel'- ling the locomotive or car in climbing the grade, and also causing greater safety upon the grade.

a is a lug cast upon plate D.

b is a slot in circular rin1`A.

c c are lugs cast at the end of the slot' ICO this open space or lost motion in order to allow the circular rim A to adjust itself to the teeth on B.

E is a piece of spring steel fastened to plate D, with bolts. In the end of E are slots that receive small pins which are fastened to the circular rim A. This'spring,

steel is for the purpose of bringing the circular rim A to its original position in the center of thev slot between the lugs o c and leave the lugs a a in the center of the slot between the lugs c c in the circular rim A. For the purpose of allowing circular rim A to adjust itself either way, that will be necessary as it approaches the teeth on B as the car may be traveling in either direction.

Circular rim A may be provided with teeth such as used in ordinary cog wheels, which could be used with the same combination as herein described.

By the device above described, the line is thus made into a rack road at necessary points, without being troubled with the rack and pinion feature at points Where it is not Wanted. By this device, in order to make the cogs mesh at the point Where the cogs alongside of the rail begin, the plate carrying the cogs on the wheel is allowed a little movement, and the lost motion is taken up as soon "as the wheels begin to slip on the grade.

This device may be placed upon the inside or outside of the wheel as may be desired.

What I claim is- 1. A combination of the circular rim marked A,- provided with open spaces, attached to a car wheel o'r locomotive Wheel, on the inside or outside, as desired, with a plate D provided with a projecting ange, substantially as described.

2. A combination ofthe circular rim, marked A, provided with open spaces, attached to a car wheel or locomotive wheel, on the inside or outside as desired, and a steel spring fastened to the center of plate D attached to the circular rim A, substantially as described.

3. Acombinaton ofthe circular rim, marked A, provided with open spaces, attached to a car wheel or locomotive wheel, on the inside or outside as desired, and a steel spring fastened to the center of plate D attached to the circular rim A,7 said plate D being provided with projecting lugs a and slot b in circular rim A provided with lugs c at end of lugs a, substantially as described.

4. The combination of a circular rim held to a car wheel or locomotive wheel, with open spaces -upon the said circular rim, as described, in order .to pass over the rail with teeth vupon a casting as marked B, which is bolted upon a rail, as described, so that the teeth will enter the' open spaces in said adjustable rim, as described.

5. The combination of casting B provided with teeth, bolted to the side of a rail in position to enter the spaces in circular rim A. v

DEXTER HAZARD.

M. L. RAYMOND, JAMES E. DALLIBA. 

